After using the necessary hand seals and preforming Earth Release: Swamp of the Underworld, Shitsunen will place both hands on the ground near the swamp he created. Then a large figure will rise from the swamp that is said to be the guardian to the entrance of the underworld. It appears as a giant golem-like figure that is cloaked by the swamps muck. The user can manipulate the beast similar to how other shinobi, like Sungakure ninja, manipulate puppets. If the muck monster has been decapitated, it can regenerate limbs as long as it is in the swamp. It cannot go far from the swamp since it seems to be connected with it, but if it tries to go out of range it will simply fall apart.